Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
trinh vat » trinh van, trinh luat, sinh vat
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
dan phan » doan phan, dan chan, dam phan
van phan » van phong, van thanh, luan phan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - canh ((tranh va) or (trinh vat)) nhung cong ((dan phan) or (van phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh ((tranh va) OR (trinh vat)) nhung cong ((dan phan) OR (van phan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh ((tranh va) or (trinh vat)) nhung cong ((dan phan) or (van phan)) cau*.